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July 20, 2026 BSE Limited National Stock Exchange of India Limited Listing Department Listing Department Phiroze Jeejeebhoy Towers Exchange Plaza, 5th floor Dalal Street Plot No. C/1, G Block Mumbai 400 001 Bandra-Kurla Complex Bandra (East) Mumbai 400 051 Dear Sir/Madam, Subject : : Filing of Annual Report in Form 20-F for the year ended March 31, 2026 The Bank has filed its Annual Report in Form 20-F with Securities and Exchange Commission for the year ended March 31, 2026. The details of the same are enclosed for reference. Yours sincerely, For ICICI Bank Limited Vivek Ranjan Leadership Team Encl.: As above Copy to- (i) New York Stock Exchange (ii) Singapore Stock Exchange (iii) Japan Securities Dealers Association (iv) SIX Swiss Exchange Ltd. @ ICICI Bank Limited +91-22 4008 8900 ® Regd. Office: ICICI Bank Towers, e companysecretary@icici.bonk.in ICICI Bank Tower. Bondro-Kurlo Complex, CIN:L65190GJ1994PLC021012 N or Chaklf Circle. Old Padro Road. Mumbai - 400 0 1 • www.icici.bank.in Vadodara. Gujarat 390 007 ICICI Bank Limited L65190GJ1994PLC021012 ICICI Bank Towers Sandra Kurla Complex Mumbai 400 051 Filing of Form 20-F ICICI Bank Limited (NYSE: IBN) filed its annual report in Form 20-F for the year ended March 31, 2026 (FY2026) on July 20, 2026, as required by United States securities regulations. The Form 20-F annual report includes the Bank's consolidated financial statements under Indian GAAP and a reconciliation of consolidated profit after tax and net worth under Indian GAAP to net income and stockholders' equity respectively, under U.S. GAAP, approved by the Audit Committee of the Board. There are differences in the basis of accounting between U.S. GAAP and Indian GAAP primarily relating to allowance for loan losses, business combinations, consolidation, valuation of securities and derivatives, amortization of fees and costs, securitization, income taxes and fixed assets. The consolidated net income under U.S. GAAP was Rs. 56,037 crore (US$ 5,972 million) compared to the consolidated profit after tax under Indian GAAP was Rs. 54,208 crore (US$ 5,777 million) at March 31, 2026. Stockholders' equity as per U.S. GAAP was Rs. 409,093 crore (US$ 43.6 billion) compared to the consolidated net worth as per Indian GAAP of Rs. 363,060 crore (US$ 38.7 billion) at March 31, 2026. The reconciliation of consolidated profit after tax and net worth under Indian GAAP to net income and stockholders' equity under U.S. GAAP is explained in note 21 of the consolidated financial statements of the Bank in Form 20-F. Pursuant to its issuance and fisting of securities in the United States under registration statements filed with the Securities and Exchange Commission, ICICI Bank files annual report in Form 20-F with the SEC as required by U.S. securities lows and regulations. ICICI Bank in its annual report in Form 20-F includes consolidated financial statements under Indian GAAP, with a reconciliation of profit after tax and net worth under Indian GAAP to net income and stockholders' equity respectively, under U.S. GAAP and a description of differences between Indian GAAP and U.S. GAAP. Copies of the Form 20-F are available from the United States Securities and Exchange Commission (SEC) website www.sec.gov or on ICICI Bank's website at "About Us/Annual reports" page. Below is the link for Form 20-F for FY2026: (https://www.sec.gov/Archives/edga r/data/1103838/0000950103260108 20/dp249803 20f.htm) ICICI Bank Limited L65190GJ1994PLC021012 ICICI Bank Towers Bandra Kurla Complex Mumbai 400 051 Shareholders may obtain a copy of the complete audited financial statements free of charge by writing to Company Secretary, /CIC/ Bank Limited, /CIC/ Bank Towers, Sandra Kur/a Comp/ex, Mumbai 400051 or sending an e-mail to companysecretary@icici.bank.in, with details of their shareholding and mailing address. For further press queries please contact Sujit Ganguli I Kausik Datta at sujit.ganguli@icici.bank.in I datta.kausik@icici.bank.in or corporate.communications@icici.bank.in. For investor queries please contact Abhinek Bhargava I Nitesh Ka/antri at abhinek.bhargava@icici.bank.in I nitesh.kalantri@icici.bank.in or ir@icici.bank.in. 1 crore = 10 million US$ amounts represent convenience translations at US$1= Rs. 93.83 Mumbai For ICICI Bank Limited July 20, 2026 Anindya Banerjee Group Chief Financial Officer